The shape of the graph of a normal distribution is this.
Bell Curve
100
A normal distribution has a mean of 8 and a standard deviation of 2. The value that is 2 positive standard deviations away from the mean is this
12
100
What is standard deviation?
The distance of a set of data points from the mean
100
A data set with a standard deviation of 9 has a variance of what?
v = 81
100
A particular new car model is available with 5 choices of color, 3 choices of transmission, 4 types of interior, and 2 types of engine. How many different variations of this model car are possible
120
200
This measure of central tendency of a normal distribution represents the highest point on the curve
The Mean
200
A normal distribution has a mean of 15 and a standard deviation of 3. The value that is 3 negative standard deviations away from the mean is this
6
200
What is the mean and standard deviation of the following set of scores:
8, 8, 8, 8, 8, 8
mean = 8
s = 0
200
Test score data:
Mean = 80
s = 5
v = 25
Write a sentence explaining what this information tells you about class performance on an exam
Answers will vary
200
There are five members of the Math Club. In how many ways can the positions of officers, a president and a treasurer, be chosen?
20
300
These percentages roughly represent the percent of the data values that fall within one, two, and three standard deviations from the mean of a normal distribution.
68% 95% 99.7%
300
A normal distribution has a mean of 10 and a standard deviation of 1. The percentage of data values that fall between the values of 8 and 12 is this
95%
300
Set A: 3, 4, 5, 6, 2, 3, 4
Set B: 3, 6, 8, 9, 1, 9, 1
Which data set would have the smaller standard deviation? How can you tell? (no calculations needed)
Set A because the numbers are closer together
300
Find the variance of the given data set:
4, 3, 2, 7, 8
s = 3
v = 9
300
There are five members of the math club. In how many ways can the two person Social Committee be chosen?
10
400
The curve is this with respect to its mean
Symmetric
400
A normal distribution has a mean of 24 and a standard deviation of 6. 68% of the values of this distribution fall between what two data values?
18 and 30
400
What is the mean and standard deviation for the following set of numbers?
4, 8, 6, 10, 16, 14, 12, 18
Mean = 11
Standard Deviation = 4.58
400
What is the variance for the following set of numbers?
23, 10, 11, 24, 32, 15, 13, 16
V = 50.98
400
How many different 12-person juries (6 male and 6 female) can be chosen from a pool of 12 males and 9 females?
77616
500
The total area under the curve of a normal distribution is this.
One or 100%
500
A normal distribution has a mean of 100 and a standard deviation of 10. The percentage of data values that fall between the values of 70 and 90 is this
15.85
500
What is the mean and standard deviation for the following set of numbers?
23, 10, 11, 24, 32, 15, 13, 16
mean =18
s = 7.14
500
Explain the difference between standard deviation and variance
Standard Deviation is how far data is from the mean, while variance is the overall spread of the data set
500
How many ways can you deal a five card hand from a standard deck if order doesn't matter?